M-DIV

Question 1

How many main reduction gears are onboard and where are they located?

Answer 1

2

Main 1 & 2

Question 2

How many SAE-40 LOPs are onboard and where?

Answer 2

2

Main 1 & 2

Question 3

How many ships service diesel generators are onboard and where?

Answer 3

4

Aux 1 & 2

Question 4

What are the modes and pressure ranges?

Answer 4

STBY - 105-115 PSI

LAG - 110-120 PSI

LEAD - 115-125 PSI

Question 5

What are the locations of the LPAC?

Answer 5

Aux 1

Aux 2

Question 6

How many HPACs are onboard and where?

Answer 6

2

Main 1 & 2

Question 7

What does non vital low pressure air provide air to?

Answer 7

Pneumatic tools

Ships laundry

Question 8

What’s the purpose of the LPACs?

Answer 8

Provide vital and non-vital air

Question 9

What PSI does the HPAC start and stop?

Answer 9

2700 start

3000 stop

Question 10

How many fire pumps are onboard?

Answer 10

7

Question 11

2190 lube oil acts as _____ for the MRG system?

Answer 11

Lubricating oil

Question 12

What’s the purpose of the MRG?

Answer 12

To convert high speed low torque of the MPDE to low speed high torque of the shaft

Question 13

How much water does a RO make a day?

Answer 13

36,000 gallons

Question 14

What does LPAC stand for?

Answer 14

Low pressure air compressor

Question 15

What are the characteristics of the MPDE’s?

Answer 15

Made by Colt Pielstick
16 cylinders 
V block configuration
4 stroke
Twin turbo
520 rpm
8500 hp
F-76 fuel oil
SAE-40 for lube oil

Question 16

What are the characteristics of the SSDGs?

Answer 16

Made by Fairbanks Morse
12 cylinder opposed piston
900 rpm
1377 hp
450 V
60 Hz
2566 amps
1600 Kw
F-76 fuel oil
SAE-40 lube oil

Question 17

Where are the potable water tanks located?

Answer 17

Underneath the gym

Question 18

Who manufactures the MRG?

Answer 18

Philadelphia

Question 19

What is the purpose of the stern tube seal?

Answer 19

Allows the shaft to exit the ship and prevent flooding

Question 20

What’s the purpose of the HPAC?

Answer 20

Provide vital air

Question 21

What does vital high pressure air provide air to?

Answer 21

Air start for MPDE’s, SSDG’s and SCBA recharging

Question 22

What’s the ratio for the MRG?

Answer 22

3:15:1

Question 23

How many main propulsion Diesel engines are onboard and where?

Answer 23

4

Main 1 & 2

Question 24

What type of HPAC is onboard?

Answer 24

Rix 5 stage swash plate compressor

Question 25

What is the purpose of the 2190 LOP?

Answer 25

To purify CPP & MRG lube oil

Question 26

What’s the purpose of the OD box?

Answer 26

To use control oil to direct flow of power oil to change the angle of the propellers.

Question 27

What’s the purpose of the SAE-40 lube oil purifiers (LOP)?

Answer 27

To purify MPDE’s lube oil

Question 28

What is the purpose of the LSB?

Answer 28

Support the weight of the shaft, Cool the shaft Absorb radial thrust

Question 29

Where are the potable water pumps located onboard?

Answer 29

1A & 1B potable water pumps are in Aux 1

Question 30

Where are the potable water risers located?

Answer 30

Port side smoke deck | STBD side of stairway to heaven

Question 31

What is the PSI and gallon per minute of the F/P?

Answer 31

170 PSI | 1000 GPM

Question 32

What type of LPACs are onboard?

Answer 32

Rix star 200, water cool, oil free, screw type compressor

Question 33

What are the locations of the fire pumps?

Answer 33

``` 1 - Aux 1 2 - Main 1 3 - Main 2 4 & 5 - Aux 2 6 & 7 - Fire pump room ```

Question 34

What does vital low pressure air pride air to?

Answer 34

MRG clutch & brake, radars

Question 35

What is the purpose of the Kingsbury thrust bearing?

Answer 35

Absorb axial thrust of the shaft to the hull of the ship

Question 36

What equipment do the ASW pumps provide to?

Answer 36

``` HPACs DBAC’s LPAC’s Stern Tube Cooling A/C’s ```

Question 37

2190 Lube oil provides ____for the CPP system?

Answer 37

Hydraulic oil

Question 38

What are the watch standers positions in Main control?

Answer 38

EOOW PACC EPCC

Question 39

How many auxiliary sea water pumps are onboard?

Answer 39

4

Question 40

What are the locations of the ASW pumps?

Answer 40

1 - Main 1 2 - Aux 1 3 - Aux 2 4 - Main 2

Question 41

What is the purpose of the strut bearing?

Answer 41

Support the shaft outside the skin of the ship

Question 42

What’s the purpose of the Hydraulic Oil Power Module (HOPM)?

Answer 42

Provide control oil to the Oil Distribution Box